Classification
000 - Computer science, information & general works
42
100 - Philosophy & psychology
34
120 - Epistemology, causation & humankind
4
140 - Specific philosophical schools
160 - Logic
1
170 - Ethics
15
174 - Occupational ethics
1
200 - Religion
15
297 - Islam, Babism & Bahai Faith
6
300 - Social sciences
22
301 - Sociology & anthropology
11
304 - Factors affecting social behavior
10
320 - Political science
39
330 - Economics
45
333 - Economics of land & energy
78
340 - Law
20
350 - Public administration & military science
3
360 - Social problems & services; associations
3
361 - Social problems & social welfare in general
3
363 - Other social problems & services
48
364 - Criminology
2
370 - Education
380 - Commerce, communications & transportation
32
400 - Language
25
410 - Linguistics
9
414 - Phonology & phonetics
2
500 - Natural sciences & mathematics
10
520 - Astronomy & allied sciences
1
530 - Physics
6
540 - Chemistry & allied sciences
5
551 - Geology, hydrology & meteorology
15
576 - Genetics & evolution
11
580 - Plants (Botany)
4
581 - Specific topics in natural history
5
600 - Technology
47
610 - Medicine & health
53
620 - Engineering & allied operations
19
630 - Agriculture & related technologies
3
657 - Accounting
1
658 - General management
10
700 - The arts; fine & decorative arts
72
720 - Architecture
6
770 - Photography, photographs & computer art
2
780 - Music
4
800 - Literature & rhetoric
14
900 - History & geography
28